diff --git a/packages/decodal-codemirror/jsr.json b/packages/decodal-codemirror/jsr.json
index 8bf6aa1..d865556 100644
--- a/packages/decodal-codemirror/jsr.json
+++ b/packages/decodal-codemirror/jsr.json
@@ -1,6 +1,6 @@
 {
   "name": "@hare/decodal-codemirror",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "license": "MIT",
   "exports": "./src/mod.ts",
   "imports": {
diff --git a/packages/decodal-codemirror/package-lock.json b/packages/decodal-codemirror/package-lock.json
index d7cd3cf..3f4a2e3 100644
--- a/packages/decodal-codemirror/package-lock.json
+++ b/packages/decodal-codemirror/package-lock.json
@@ -1,14 +1,19 @@
 {
   "name": "decodal-codemirror",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "decodal-codemirror",
-      "version": "0.1.2",
+      "version": "0.1.3",
       "license": "MIT OR Apache-2.0",
-      "dependencies": {
+      "devDependencies": {
+        "@codemirror/language": "^6.12.4",
+        "@lezer/highlight": "^1.2.3",
+        "@lezer/lr": "^1.4.10"
+      },
+      "peerDependencies": {
         "@codemirror/language": "^6.12.4",
         "@lezer/highlight": "^1.2.3",
         "@lezer/lr": "^1.4.10"
@@ -18,6 +23,7 @@
       "version": "6.12.4",
       "resolved": "https://registry.npmjs.org/@codemirror/language/-/language-6.12.4.tgz",
       "integrity": "sha512-1q4PaT+o6PbgpkJt4Q8Fv5XJxTy4FUZ4MWETtyiDw3J0Pyr9E2vqcKL+k9wcvjNTIsauxvE7OfmWj3FRPHQ76A==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@codemirror/state": "^6.0.0",
@@ -32,6 +38,7 @@
       "version": "6.7.1",
       "resolved": "https://registry.npmjs.org/@codemirror/state/-/state-6.7.1.tgz",
       "integrity": "sha512-9QzNDgE4EYDnAHfrTlR2lwiPciiOymLtwKK+8yHQzCc7GXhAP9xdEbEJFy2IWB1j9UGUl9BsgMmTo/ImA02T7A==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@marijn/find-cluster-break": "^1.0.0"
@@ -41,6 +48,7 @@
       "version": "6.43.6",
       "resolved": "https://registry.npmjs.org/@codemirror/view/-/view-6.43.6.tgz",
       "integrity": "sha512-EVunGSYN1wz1p75WY1s3Xg7t3i8Yol0kGZGizNdX9BUFgMFILYVe8/u6EVpo7Ff5PwbZuILb4QAq7IZoKzIEQA==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@codemirror/state": "^6.7.0",
@@ -53,12 +61,14 @@
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/@lezer/common/-/common-1.5.2.tgz",
       "integrity": "sha512-sxQE460fPZyU3sdc8lafxiPwJHBzZRy/udNFynGQky1SePYBdhkBl1kOagA9uT3pxR8K09bOrmTUqA9wb/PjSQ==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/@lezer/highlight": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/@lezer/highlight/-/highlight-1.2.3.tgz",
       "integrity": "sha512-qXdH7UqTvGfdVBINrgKhDsVTJTxactNNxLk7+UMwZhU13lMHaOBlJe9Vqp907ya56Y3+ed2tlqzys7jDkTmW0g==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@lezer/common": "^1.3.0"
@@ -68,6 +78,7 @@
       "version": "1.4.10",
       "resolved": "https://registry.npmjs.org/@lezer/lr/-/lr-1.4.10.tgz",
       "integrity": "sha512-rnCpTIBafOx4mRp43xOxDJbFipJm/c0cia/V5TiGlhmMa+wsSdoGmUN3w5Bqrks/09Q/D4tNAmWaT8p6NRi77A==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@lezer/common": "^1.0.0"
@@ -77,24 +88,28 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/@marijn/find-cluster-break/-/find-cluster-break-1.0.3.tgz",
       "integrity": "sha512-FY+MKLBoTsLNJF/eLWaOsXGdz6uh3Iu1axjPf6TUq92IYumcTcXWHoS747JARLkcdlJ/Waiaxc5wQfFO8jC6NA==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/crelt": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/crelt/-/crelt-1.0.7.tgz",
       "integrity": "sha512-aK6BbWfhf4U/wCcLHKPJl/xa6VkVstRaPywWtMKGwuOLc/wZTyQYuoxgvZnNsBvv7Kg3YTBQYYBCggcviQczuA==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/style-mod": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/style-mod/-/style-mod-4.1.3.tgz",
       "integrity": "sha512-i/n8VsZydrugj3Iuzll8+x/00GH2vnYsk1eomD8QiRrSAeW6ItbCQDtfXCeJHd0iwiNagqjQkvpvREEPtW3IoQ==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/w3c-keyname": {
       "version": "2.2.8",
       "resolved": "https://registry.npmjs.org/w3c-keyname/-/w3c-keyname-2.2.8.tgz",
       "integrity": "sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==",
+      "dev": true,
       "license": "MIT"
     }
   }
diff --git a/packages/decodal-codemirror/package.json b/packages/decodal-codemirror/package.json
index 934ad75..ce3f1b1 100644
--- a/packages/decodal-codemirror/package.json
+++ b/packages/decodal-codemirror/package.json
@@ -1,6 +1,6 @@
 {
   "name": "decodal-codemirror",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "CodeMirror 6 language support for Decodal.",
   "type": "module",
   "license": "MIT OR Apache-2.0",
@@ -27,7 +27,12 @@
     "codemirror",
     "lezer"
   ],
-  "dependencies": {
+  "peerDependencies": {
+    "@codemirror/language": "^6.12.4",
+    "@lezer/highlight": "^1.2.3",
+    "@lezer/lr": "^1.4.10"
+  },
+  "devDependencies": {
     "@codemirror/language": "^6.12.4",
     "@lezer/highlight": "^1.2.3",
     "@lezer/lr": "^1.4.10"
diff --git a/site/decodal-site/astro.config.mjs b/site/decodal-site/astro.config.mjs
index a542924..b4d423e 100644
--- a/site/decodal-site/astro.config.mjs
+++ b/site/decodal-site/astro.config.mjs
@@ -4,6 +4,13 @@ export default defineConfig({
   output: 'static',
   vite: {
     resolve: {
+      dedupe: [
+        '@codemirror/language',
+        '@codemirror/state',
+        '@codemirror/view',
+        '@lezer/highlight',
+        '@lezer/lr',
+      ],
       preserveSymlinks: true,
     },
   },
diff --git a/site/decodal-site/package-lock.json b/site/decodal-site/package-lock.json
index 835852b..0be04dd 100644
--- a/site/decodal-site/package-lock.json
+++ b/site/decodal-site/package-lock.json
@@ -26,9 +26,14 @@
       }
     },
     "../../packages/decodal-codemirror": {
-      "version": "0.1.2",
+      "version": "0.1.3",
       "license": "MIT OR Apache-2.0",
-      "dependencies": {
+      "devDependencies": {
+        "@codemirror/language": "^6.12.4",
+        "@lezer/highlight": "^1.2.3",
+        "@lezer/lr": "^1.4.10"
+      },
+      "peerDependencies": {
         "@codemirror/language": "^6.12.4",
         "@lezer/highlight": "^1.2.3",
         "@lezer/lr": "^1.4.10"
diff --git a/site/decodal-site/src/pages/index.astro b/site/decodal-site/src/pages/index.astro
index 9e5009a..5d6c6bf 100644
--- a/site/decodal-site/src/pages/index.astro
+++ b/site/decodal-site/src/pages/index.astro
@@ -52,7 +52,7 @@ Production = Server & {
         <span>CodeMirror package</span>
         <strong>npmjs.com/package/decodal-codemirror</strong>
       </a>
-      <a href="https://jsr.io/@hare/decodal-codemirror@0.1.2">
+      <a href="https://jsr.io/@hare/decodal-codemirror@0.1.3">
         <span>CodeMirror on JSR</span>
         <strong>jsr.io/@hare/decodal-codemirror</strong>
       </a>